diff options
| author | Simon Glass <sjg@chromium.org> | 2015-06-23 15:38:59 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-07-21 17:39:26 -0600 |
| commit | 083fc83a4e1187a3f42575c8e3df089d3be622ad (patch) | |
| tree | 4c562301946c94dcfcf6e7d332a433e89a36d528 | |
| parent | 3b55d30f6ff2f16c5fd02685bff7639211e6d326 (diff) | |
dm: power: Add a function to set up all regulators
The device tree provides information about which regulators should be
on at boot, or always on. Use this to set them up automatically.
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Przemyslaw Marczak <p.marczak@samsung.com>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>
| -rw-r--r-- | drivers/power/regulator/regulator-uclass.c | 22 | ||||
| -rw-r--r-- | include/power/regulator.h | 11 |
2 files changed, 33 insertions, 0 deletions
diff --git a/drivers/power/regulator/regulator-uclass.c b/drivers/power/regulator/regulator-uclass.c index 687d3b1e31..a2d0b9fa8b 100644 --- a/drivers/power/regulator/regulator-uclass.c +++ b/drivers/power/regulator/regulator-uclass.c @@ -306,6 +306,28 @@ static int regulator_pre_probe(struct udevice *dev) return 0; } +int regulators_enable_boot_on(bool verbose) +{ + struct udevice *dev; + struct uclass *uc; + int ret; + + ret = uclass_get(UCLASS_REGULATOR, &uc); + if (ret) + return ret; + for (uclass_first_device(UCLASS_REGULATOR, &dev); + dev && !ret; + uclass_next_device(&dev)) { + ret = regulator_autoset(dev); + if (ret == -EMEDIUMTYPE) + continue; + if (verbose) + regulator_show(dev, ret); + } + + return ret; +} + UCLASS_DRIVER(regulator) = { .id = UCLASS_REGULATOR, .name = "regulator", diff --git a/include/power/regulator.h b/include/power/regulator.h index dd04371140..015229027c 100644 --- a/include/power/regulator.h +++ b/include/power/regulator.h @@ -316,6 +316,17 @@ int regulator_get_mode(struct udevice *dev); int regulator_set_mode(struct udevice *dev, int mode_id); /** + * regulators_enable_boot_on() - enable regulators needed for boot + * + * This enables all regulators which are marked to be on at boot time. This + * only works for regulators which don't have a range for voltage/current, + * since in that case it is not possible to know which value to use. + * + * This effectively calls regulator_autoset() for every regulator. + */ +int regulators_enable_boot_on(bool verbose); + +/** * regulator_autoset: setup the voltage/current on a regulator * * The setup depends on constraints found in device's uclass's platform data |